Protector mechanism for looms



No. 6l8,374. v Patented 15m. 24, I899.

m. .1. BIGELOW. PROTECTOR MECHANlSM FOB LUOMS.

(Application filed Oct. 6, 1898.)

(No Model.)

UNITED STATES ATENT FFICE.

MYRON J. BIGELOYV, OF I'ICPEDALE, MASSACHUSETTS, ASSIGNOR TO THE DRAPERCOMPANY, OF SAME PLACE AND PORTLAND, MAINE.

PROTECTOR MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 618,374, dated January24, 1899.

Application filed October 6, 1898.

To all whom it may concern.-

Be it known that I, MYRON J. BIGELOW, of Hopedale, county of \Vorcester,State of Massachusetts, have invented an Improvement in ProtectorMechanism for Looms, of which the following description, in connectionwith the accompanying drawings, is a specification, like letters on thedrawings representing like parts.

The protector mechanism usual on backbinder looms includes a frog-liftmounted on a sliding frog adapted to travel on the loom side, the daggerengaging the frog-lift when the shuttle is improperly boxed to therebystop the loom. Engagement of the frog-lift by the dagger causes a greatstrain on all the parts, and it is highly desirable to preserve absolutealinement in the travel of the frog and also prevent tipping thereof;and my present invention has for its object the production of means forattaining such results.

Figure 1 is a left-hand side view of a loom with my invention appliedthereto; and Fig. 2 is a top or plan view, enlarged, of the frog,showing more clearly my invention.

The loom-frame A, breast-beam A having the holding-plate N for theshipper-lever L to actuate the belt-shifting devices, (not shown,) andthe knock-off lever b for the shipperlever, adapted to be operated by anarm f fast on an offset f of the usual frog F, mounted to slide on theloom side, may be and are all of usual or well-known construction.

The frog-lift f mounted on the frog and to be engaged at times by thedagger d, (only partially shown in Fig. 1,) is of usual construction andforms no part of my invention.

I have herein shown the forward end of the Serial No. 692,811. (Nomodel.)

frog F as provided at the sides with two separated projections fextended forward beneath two opposite and laterally-extended lugs aformed on the upright corner portion A of the loom-frame, preferablycast thereon. As the frog slides on its support the fixed lugs above theprojections f prevent tipping of the frog and, passing at opposite sidesof the part A of the frame, insure the movement of the frog in properalinement Without any opportunity to twist.

The device is exceedingly simple, durable, and highly efficient inattaining the desired objects.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is

1. In a loom, the frog adapted to slide on the loom-frame, projectionson and extended beyond the front of the frog, and fixed guidelugs on theloom-frame, beneath which said projections extend, to prevent tipping ortwisting of the frog in its sliding movement.

2. In a loom, the frog adapted to slide on the loom-frame, separatedprojections on and extended beyond the front of the frog to pass onopposite sides of a part of the loom-frame, and fixed guide-lugs on suchpart of the frame above the projections, to prevent lateral tipping ofthe frog in its sliding movement and insure its movement in properalinement.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

MYRON J. BIGELOW.

Witnesses:

Gno. OTIS DRAPER, ALBERT H. OoUsINs.

